No physical and life scientists do not in the general case care about how "lisp nature" or "serial and imperative methods". We use R because there is a package

No physical and life scientists do not in the general case care about how "lisp nature" or "serial and imperative methods". We use R because there is a package in CRAN for the calculations we want to do -- and because our colleague/boss does. Often we will use loops because the mental effort of coding a vector solution can be higher